--- a/src/test/scala/SparqlToSparqlTest.scala	Thu Jun 17 07:15:32 2010 -0700
+++ b/src/test/scala/SparqlToSparqlTest.scala	Thu Jun 17 07:16:51 2010 -0700
@@ -216,6 +216,65 @@
     assert(transformed === expected)
   }
 
+  val Emp_TaskToFoaf_split_knows = GlobalSparqlParser.parseAll(GlobalSparqlParser.construct, """
+  PREFIX mark : <tag://eric.prud.name/2010/mark>
+  PREFIX foaf : <http://xmlns.com/foaf/0.1/>
+  PREFIX task : <http://hr.example/DB/Task#>
+  CONSTRUCT { ?emp  foaf:knows ?man . }
+  WHERE { ?pair task:drone      ?emp .
+          ?pair task:manager    ?man }
+  """).get // "
+/*          ?emp  mark:a          mark:a .
+          ?man  mark:a          mark:a } */
+  val Emp_TaskToFoaf_split_empLastName = GlobalSparqlParser.parseAll(GlobalSparqlParser.construct, """
+  PREFIX mark : <tag://eric.prud.name/2010/mark>
+  PREFIX foaf : <http://xmlns.com/foaf/0.1/>
+  PREFIX empP : <http://hr.example/DB/Employee#>
+  CONSTRUCT { ?person  foaf:last_name  ?person_name }
+  WHERE { ?person  empP:lastName   ?person_name }
+  """).get // "
+  val Emp_TaskToFoaf_split_projLastName = GlobalSparqlParser.parseAll(GlobalSparqlParser.construct, """
+  PREFIX mark : <tag://eric.prud.name/2010/mark>
+  PREFIX foaf : <http://xmlns.com/foaf/0.1/>
+  PREFIX projP : <http://hr.example/DB/Project#>
+  CONSTRUCT { ?project  foaf:last_name  ?proj_name }
+  WHERE { ?project  projP:lastName   ?proj_name }
+  """).get // "
+
+  test("markers0") {
+    val sparqlParser = Sparql()
+    val query = sparqlParser.parseAll(sparqlParser.select, """
+PREFIX foaf : <http://xmlns.com/foaf/0.1/>
+PREFIX xsd : <http://www.w3.org/2001/XMLSchema#>
+SELECT ?lname {
+  ?who  foaf:last_name    ?lname .
+  ?who  foaf:knows        ?whom  .
+  ?whom foaf:knows        ?whom2 .
+  ?whom2 foaf:last_name    "Smith"^^xsd:string }
+""").get
+    SparqlToSparql.Abbreviations ++= Emp_TaskToFoaf_abbr
+
+    val transformed = SparqlToSparql(query, List(SparqlMap(Emp_TaskToFoaf_split_knows, emptyPatternMap)
+//						 , SparqlMap(Emp_TaskToFoaf_split_projLastName, emptyPatternMap)
+						 , SparqlMap(Emp_TaskToFoaf_split_empLastName, emptyPatternMap)
+					       ))
+
+    val expected = sparqlParser.parseAll(sparqlParser.select, """
+PREFIX empP : <http://hr.example/DB/Employee#>
+PREFIX task : <http://hr.example/DB/Task#>
+PREFIX xsd : <http://www.w3.org/2001/XMLSchema#>
+SELECT ?lname
+     { ?who     empP:lastName   ?lname .
+       ?_2_pair task:drone      ?who .
+       ?_2_pair task:manager    ?whom .
+       ?_3_pair task:drone      ?whom .
+       ?_3_pair task:manager    ?whom2 .
+       ?whom2   empP:lastName   "Smith"^^xsd:string
+     }
+""").get
+    assert(expected === transformed)
+  }
+
   test("reaches0") {
     val graph = Set[(String,String)](
     ("a", "b"),